Can I say: “I cannot bear your separation.”?
Or should I say: “I cannot bear the separation from you.”?
Please correct me. Thanks.

‘I cannot bear being separated from you’ would be clearer.

Can I not say:

  1. I cannot bear your separation from me.
  2. I cannot bear separation from you.
    Please clarify.

Yesm, you can… but those are not the terms you asked about in your first message.